no match while resolving probe point kernel.function("printk")

[Om]

Frank Ch. Eigler wrote:
> Om <om.turyx@gmail.com> writes:
> 
>> I am trying to execute this script.
>> [...]
>> # stap -v -u printk-time-toggle.stp  1
>> [...]
>> semantic error: write to target variable not permitted: identifier
>> '$printk_time' at printk-time-toggle.stp:8:4
>> [...]
> 
> That's the key message there.  Since this script attempts to modify
> a kernel variable, it needs to be run under guru mode ("stap -g ...").
Thanks. It is working as expected now.
Om.